There's an explanation for the FPS gain - it's just the external diameter of the Madbull rubbers are larger than most and thus seals against the walls of the hop unit better. A lot of users have complained that it's oversized nature makes it incredibly difficult to install into hop units.

You do know the R-hop is not AEG specific right?

if you don't like the guarder clear tearing, use the guarder black lol
ARS is a good standard
firefly works amazing on high precision setups and are actually pretty durable
and recently I've found the falcon green rubbers to be really good too, but I'm told there's a noticeable lemon rate with them

Best results I've had were with the PDI W hold and firefly rubbers.

I'm working out the other details on the gas rifle before going there. Before spring though I hope.

Systema bucking with SCS nub. I know it's old now, but I've found it to be the most consistent with good range. Once tuned and modded right, I've never had to switch to anything else, other than for testing purposes.

Installation, installation, installation, that is all I have to say with any hopup rubber.

Yes. They work well and are a decent buy.

I have personally found this to be a bad problem with the Madbull blue buckings, but not the red ones. I've installed the red ones in a couple places now and haven't had an issue yet (I never got any of the blue ones to work on the other hand).

I've got REAPS in a CYMA MP5K that's doing about 380fps (hoping to get it a bit higher) and I'm extremely pleased with the range and trajectory so far. I didn't expect a product that was so cheesily marketed to actually deliver.

no for me, I've had lots of gas guns and they always end up having trouble cycling and being unfixable, mags always end up leaking, while aegs work for decades on end.

Honestly the W, firefly, and falcon rubbers work BETTER than the SCS. That's why I don't use the SCS lol